On Tue, 2013-10-22 at 20:34 -0400, Frank McCormick wrote: > I have also had this problem for a while - I thought it was related to > Mate which I run. > gksudo will run it here...but pkexec will not. I don't know pkexec. Does it allow something gksudo doesn't allow? If there should be the need to log in as another user with gksudo, this does the trick: xhost + gksudo -u add_another_user_here "$*" xhost - exit